from fastapi import APIRouter, Depends
from sqlalchemy.orm import Session

from app.core.database import get_db
from app.core.security import require_api_key
from app.modules.legacy_mysql.schemas import (
    LegacyProjectSyncRequest,
    LegacyProjectSyncResult,
    QueryResult,
    ReadonlyQueryRequest,
)
from app.modules.legacy_mysql.service import LegacyMySQLService

router = APIRouter(dependencies=[Depends(require_api_key)])


@router.get("/health")
def mysql_health(db: Session = Depends(get_db)) -> dict[str, str]:
    return LegacyMySQLService(db).health()


@router.get("/tables")
def list_tables(db: Session = Depends(get_db)) -> dict[str, list[str]]:
    return {"tables": LegacyMySQLService(db).list_tables()}


@router.get("/tables/{table_name}")
def describe_table(table_name: str, db: Session = Depends(get_db)) -> dict:
    return {"table": table_name, "columns": LegacyMySQLService(db).describe_table(table_name)}


@router.post("/query", response_model=QueryResult)
def readonly_query(payload: ReadonlyQueryRequest, db: Session = Depends(get_db)) -> dict:
    return LegacyMySQLService(db).execute_readonly(payload.sql, payload.params, payload.limit)


@router.get("/projects", response_model=QueryResult)
def default_project_query(limit: int = 100, db: Session = Depends(get_db)) -> dict:
    return LegacyMySQLService(db).fetch_default_projects(limit=limit)


@router.post("/projects/sync", response_model=LegacyProjectSyncResult)
def sync_projects(payload: LegacyProjectSyncRequest, db: Session = Depends(get_db)) -> dict:
    return LegacyMySQLService(db).sync_projects(
        source_query=payload.source_query,
        field_map=payload.field_map,
        limit=payload.limit,
        dry_run=payload.dry_run,
        actor=payload.actor,
    )